Control unit required for OEM retrofitting of xenon headlights for VW Polo 6R Please contact a local VW dealer for replacement of the on-board control unit Connect the vehicle to the VW diagnostic device - Current codings must be copied to the new control unit - After replacing the keys, the vehicle must be reactivated Scope of delivery: Control unit Note: Not suitable for USA Not suitable for cars with start-stop system (pr nr 7L8)